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66809 (1999 TX288)
Classification: Main-belt Asteroid          SPK-ID: 2066809
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04206182677904275 5.525e-08  
a 2.712967753465672 1.6317e-08 au
q 2.598855373762269 1.513e-07 au
i 4.195927058390384 4.6445e-06 deg
node 312.3740492469345 8.2665e-05 deg
peri 85.23709651263823 9.8921e-05 deg
M 209.4686015136324 5.4818e-05 deg
tp 2459682.980064662517
(2022-Apr-13.48006466)
0.00024945 TDB
period 1632.169937627708
4.47
1.4725e-05
4.031e-08
d
yr
n .2205652681749826 1.9899e-09 deg/d
Q 2.827080133169073 1.7004e-08 au
  Orbit Determination Parameters
   # obs. used (total)      702  
   data-arc span      7562 days (20.70 yr)  
   first obs. used      1999-10-02  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55583  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:15:45  

Additional Information
 Earth MOID = 1.6095 au 
 Jupiter MOID = 2.34992 au 
 T_jup = 3.357 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456818.5 (2014-Jun-10.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04180013509660836 5.5036e-08  
q 2.601260075165814 1.5085e-07 au
tp 2456430.537158547819
(2013-May-18.03715855)
0.00025028 TDB
node 312.4032169580964 8.2644e-05 deg
peri 87.88754957410808 9.9303e-05 deg
i 4.196040614347659 4.6433e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      702  
   data-arc span      7562 days (20.70 yr)  
   first obs. used      1999-10-02  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55583  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:15:45  

Additional Information
 Jupiter MOID = 2.34992 au 
 T_jup = 3.357 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.028936386817107E-15 -8.256168960097468E-15 -1.997628118894083E-12 2.767731047042727E-15 -4.711407140593323E-13 -8.468907884291944E-16
q -8.256168960097468E-15 2.27568125112016E-14 5.449633671228613E-12 -7.254645921127412E-15 1.295867483377124E-12 2.438253548292062E-15
tp -1.997628118894083E-12 5.449633671228613E-12 6.264134707098299E-8 3.83476948348771E-12 1.383045408202152E-8 1.512980640593485E-12
node 2.767731047042727E-15 -7.254645921127412E-15 3.83476948348771E-12 6.829989590823097E-9 -6.810726934886019E-9 6.458919960122627E-11
peri -4.711407140593323E-13 1.295867483377124E-12 1.383045408202152E-8 -6.810726934886019E-9 9.861127812394055E-9 -6.408632301931498E-11
i -8.468907884291944E-16 2.438253548292062E-15 1.512980640593485E-12 6.458919960122627E-11 -6.408632301931498E-11 2.156040317366001E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO280168  
diameter diameter 5.506 km 0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66809 (1999 TX288)          Discovered 1999-Oct-10 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2077-Dec-06 15:42 00:07 Hygie 0.041462092865645 0.0414481529348516 0.0414760333076922 2.22180802396173 2.221807604546 2480009.153932823 7.42650995367847 729.773953733373 64.7828105323856 18.5656626768369 31348.3498576662 T 18 CATAB v2.0f-lin.ifort 2020-Jun-23 23:15:57 2020-Jun-23 23:16
2087-Dec-03 04:29 00:02 Eunom 0.0270954203399132 0.027092377475022 0.0270984740839489 3.52556741754874 3.52556727059895 2483657.686838407 1.62286880464053 945.106429184909 60.7131262900238 81.5220780515659 65947.630037797 T 18 CATAB v2.0f-lin.ifort 2020-Jun-23 23:15:57 2020-Jun-23 23:16
2185-Mar-18 06:11 00:24 Iris 0.0459414810949442 0.0459395596796024 0.0459434165182891 2.7791455487732 2.77914550374788 2519191.757403372 24.2060395093884 1639.50773705751 61.0460559915226 -87.3942815826042 112339.970342784 T 18 CATAB v2.0f-lin.ifort 2020-Jun-23 23:15:57 2020-Jun-23 23:16
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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